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相关论文: Spin-orbit torque induced electrical switching of …

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As CMOS technologies face challenges in dimensional and voltage scaling, the demand for novel logic devices has never been greater, with spin-based devices offering scaling potential, at the cost of significantly high switching energies.…

Contrary to conventional wisdom that spin dynamics induced by current are exclusive to metallic magnets, we theoretically predict that such phenomena can also be realized in magnetic insulators, specifically in the magnetoelectric…

材料科学 · 物理学 2026-04-07 R. M. Dubrovin , Z. V. Gareeva , A. V. Kimel , A. K. Zvezdin

Synthetic antiferromagnets (SAF) have been proposed to replace ferromagnets in magnetic memory devices to reduce the stray field, increase the storage density and improve the thermal stability. Here we investigate the spin-orbit torque in a…

材料科学 · 物理学 2018-07-04 P. X. Zhang , L. Y. Liao , G. Y. Shi , R. Q. Zhang , H. Q. Wu , Y. Y. Wang , F. Pan , C. Song

We study spin switching effects in finite-size superconducting multivalve structures. We examine $\rm F_1F_2SF_3$ and $\rm F_1F_2SF_3F_4$ hybrids where a singlet superconductor ($\rm S$) layer is sandwiched among ferromagnet ($\rm F$)…

超导电性 · 物理学 2018-03-09 Mohammad Alidoust , Klaus Halterman

We fabricated a current-perpendicular-to-plane giant magnetoresistance (CPP-GMR) nanopillar with a 1-nm-thick FePt free layer having perpendicular anisotropy using the alternate monatomic layer deposition method. Nanopillars consisting of…

Using an atomistic spin model, we have simulated spin wave injection and propagation into antiferromagnetic IrMn from an exchange coupled CoFe layer. The spectral characteristics of the exited spin waves have a complex beating behavior…

材料科学 · 物理学 2020-08-10 Sarah Jenkins , Roy W. Chantrell , Richard F. L. Evans

Spin-orbit torque facilitates efficient magnetization switching via an in-plane current in perpendicularly magnetized heavy metal/ferromagnet heterostructures. The efficiency of spin-orbit-torque-induced switching is determined by the…

Spin transfers in magnetic multilayers offers a promising pathway toward ultrafast, energy-efficient spintronic devices. In this study, we investigate the interfacial spin pumping and temperature-dependent spin current exchange in a…

介观与纳米尺度物理 · 物理学 2026-02-02 Mahammad Tahir , Swati Pandey , Sourabh Manna , Rajdeep Singh Rawat , Rohit Medwal , Soumik Mukhopadhyay

An antiferromagnet is a promising material for spin-orbit torque generation. Earlier studies of the spin-orbit torque in an antiferromagnet are limited to collinear spin configurations. We calculate the spin-orbit torque in an…

介观与纳米尺度物理 · 物理学 2018-04-04 Suik Cheon , Hyun-Woo Lee

Antiferromagnetic materials promise improved performance for spintronic applications, as they are robust against external magnetic field perturbations and allow for faster magnetization dynamics compared to ferromagnets. The direct…

In multiferroic TbMn$_2$O$_5$, the behavior of the terbium ions forms a crucial part of the magneto-electric coupling. The result is a magnetically induced reversal of the electric polarization at 2 T. In this article we present the first…

强关联电子 · 物理学 2011-06-27 R. D. Johnson , C. Mazzoli , S. R. Bland , C-H. Du , P. D. Hatton

Spin correlations in metallic and insulating phases of $V_2O_3$ and its derivatives are investigated using magnetic neutron scattering. Metallic samples have incommensurate spin correlations varying little with hole doping. Paramagnetic…

强关联电子 · 物理学 2009-10-28 Wei Bao , C. Broholm , G. Aeppli , P. Dai , J. M. Honig , P. Metcalf

As electrical control of N\'eel order opens the door to reliable antiferromagnetic spintronic devices, understanding the microscopic mechanisms of antiferromagnetic switching is crucial. Spatially-resolved studies are necessary to…

The influence of the spin-orbit coupling on the magnetic structure of deposited transition metal nanostructure systems has been studied by fully relativistic electronic structure calculations. The interplay of exchange coupling and magnetic…

材料科学 · 物理学 2009-02-20 S. Mankovsky , S. Bornemann , J. Minár , S. Polesya , H. Ebert , J. B. Staunton , A. I. Lichtenstein

Finding efficient ways of manipulating magnetic bits is one of the core goals in spintronic research. Electrically-generated spin-orbit torques (SOTs) are good candidates for this and the search for materials capable of generating…

介观与纳米尺度物理 · 物理学 2020-08-31 Casper F. Schippers , Henk J. M. Swagten , Marcos H. D. Guimarães

Spin injection in metallic normal/ferromagnetic junctions is investigated taking into account the anisotropic magnetoresistance (AMR) occurring in the ferromagnetic layer. It is shown, on the basis of a generalized two channel model, that…

材料科学 · 物理学 2009-11-11 J. -E. Wegrowe , Q. Anh Nguyen , M. Al-Barki , J. -F. Dayen , T. L. Wade , H. -J. Drouhin

A DFT-based method is presented which allows the computation of all-electron NMR shifts of metallic compounds with periodic boundary conditions. NMR shifts in metals measure two competing physical phenomena. Electrons interact with the…

材料科学 · 物理学 2009-11-13 Mayeul d'Avezac , Nicola Marzari , Francesco Mauri

Based on numerical simulations, we demonstrate thermally induced magnetic switching in synthetic ferrimagnets composed of multilayers of rare-earth and transition metals. Our findings show that deterministic magnetization reversal occurs…

介观与纳米尺度物理 · 物理学 2017-07-05 Stefan Gerlach , Laszlo Oroszlany , Denise Hinzke , Steffen Sievering , Sönke Wienholdt , Laszlo Szunyogh , Ulrich Nowak

The electron spin resonance (ESR) spectroscopy was employed to investigate the spin dynamics in triangular lattice antiferromagnets CuCr$_{1-x}$Mg$_{x}$O$_2$ with $x =$ 0 and 0.02. All spectra can be well fitted by a single Lorentzian…

强关联电子 · 物理学 2012-07-16 Renwen Li , Zhe Qu , Wei Tong , Yuheng Zhang

Magnetoelectric multiferroics are highly sought after for applications in low-power electronics and for advancing fundamental research, including axion insulators and dark matter detection. However, achieving a combination of ferroic spin…

材料科学 · 物理学 2024-12-02 Libor Šmejkal